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Finding the Fourth Proportional to 1,634.64, 2,454.36 and 1,415.92

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Solution

The fourth proportional to 1,634.64, 2,454.36 and 1,415.92 is: 2,125.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,634.64 : 2,454.36 = 1,415.92 : x
  2. Step 2: Convert to fraction form
    1,634.64/2,454.36 = 1,415.92/x
  3. Step 3: Cross multiply
    1,634.64x = 2,454.36 × 1,415.92
  4. Step 4: Simplify right side
    1,634.64x = 3,475,177.41
  5. Step 5: Solve for x
    x = 3,475,177.41/1,634.64
  6. Step 6: Final answer
    x = 2,125.96

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.